REIWA does not supply any guidelines as to the level of fees that could be paid to a real estate and/or business agent for their service.
REIWA does not monitor the fees charged by its members.
Furthermore, it could be deemed a breach of the Competition and Consumer Act for REIWA to be suggesting what fees could be suitable.
Fees are set by market forces. REIWA can only suggest that people compare the fees and service offered between several real estate agents before enlisting their service.